The True Organization XIII has teamed up with the Fire Nation and it's up to Sora and Team Avatar to stop this new evil alliance before darkness spread across the world.

When a young Sora is found at the door of the Fire Nation Capital and is found to be able to bend more than one element, he is taken in by Ozai and is trained as a secret weapon for the Fire Nation. How will he affect the events that is to become and how will he get along with his siblings: Zuko and Azula? (Up for Adoption).

Xemnas is no more. Acting on an anonymous tip, Sora and the gang are dispatched to destroy six powerful Nobodies that have conquered an entire world. There's just one problem: these "Nobodies" are actually Aang and company, six months after defeating Phoenix King Ozai.

Burned and exiled by his own father, Zuko, the prince of the Fire Nation is given a chance to rise above the darkness cast by his people and given the weapon to bring light to not just his world, but all worlds. Join Zuko as he walks down a new path. The path of a Keyblade wielder. (Please enjoy, fav, and review.)

Korra may be the avatar, but everyone has their match!

Xenysis, a young Nobody, has lost the love of his life, Ymke. The only traces left of her are her gifts to him, and a mysterious Nobody named Kemyx. Xenysis meets up with his sister's Nobody, Xirksis, and they join organization XIII.

After saving the world once, Aang is maintaining peace in his world, but disturbances in the physical and spirit worlds forces Raava to reawaken and call the Avatar to face the impending threat. With Dark Spirits threatening the world and with Xehanort and Vaatu leading them, will Aang's new ability save the universe or will outsiders from another world have to quell the chaos?

Sora is now age 19, content with his life and love, however when a mysterious message from Riku appears, he must travel to take on the most dangerous of all evils. Kingdom Hearts and Avatar Crossover Fanfic, Book 1, rated T for violence and language.

Aang takes Sora penguin sledding. ATLA Book 1. KHII. Oneshot.

When the worlds of Kingdom Hearts and the 4 Nations start to intertwine with Earth it is up to Sora (Kingdom Hearts), Aang (Avatar: The Last Airbender), Asher Parker (Earth) and their friends to restore balance to their converged worlds.

So the Avatar characters have been replaced with Kingdom Hearts characters, Hope you enjoy!

Saix and Yue where enjoying the Harvest Moon Festival in the Symphony of Sorcery when Yue was spirited away by a white bull with gold horns. Saix, Axel, and Roxas have to face the forces of nature save her.

Vigilem is off on a quest to find the "Guardians of Lux". However he has some trouble on the way. NOTICE: This story does not just include characters from Kingdom Hearts, and Avatar: The Last Airbender. It also contains Ben 10, Code Lyoko, and How to Train Your Dragon.

Ventus grew up training under swordmaster Eraqus, near Ba Sing Se. After thirteen years of training to be a great swordsman, rumors start to fly around, some of which involving young Ven. This leads to him questioning his existence, where did he come from, who was he? Taking off, Ventus starts a journey that will lead across the nations... And him awakening hidden talents.

Long after the deaths of Avatar Korra, Terra and their predecessors we come to learn about the story of Avatars Sora and Roxas; 2 Avatars living at the same time due to an evil spirit. They must come together to save both the dying human and spirit world. "One in the vision of the good, one in the vision of the bad..."

a story about my two oc's Caxe and Gexo. it says avatar as a crossover, but its MUCH MORE. enjoy, criticism appreciated

Zuko, Azula, and her friends encounter a masked boy that was attracted by the negative emotion from Zuko and his relationship with his father. Based on the Avatar episode "The Beach" and before the events of Birth by Sleep.

THE BLIND BANDIT VS- uhh... Riku? Random oneshot, I was bored.

What would happen if Axel from Kingdom Hearts and Zuko from Avatar ever met and got into a fight? Well, this is certainly a possibility. It's pretty out there, but it could happen. Sorry, no yaoi. LOTS of cursing. Like, major foul language. I warned you.

As Vanitas plans to invade another world with Unversed, Aang tries to stop him. Leading to a tough battle. I do not own Aang or Vanitas.

While traveling to Ba Sing Se in order to look for Appa, the Avatar and his gang notice a suit of armor kneeling down with a key shaped sword.

Donald Duck has set off on a journey of his own. Follow as he tries to learn Earthbending and does some neat new magic spells aling the way.

AU, Crossover This, above all, is a love story. He was the amnesiac boy with the haunted, haunting smile. She was his Shoshanna, his Juliet. And she was not real. Namixas and eventual Roxas/Yue.

Lexaeus has been sent to find a potential Organization member. He gets one small surprise. One small, blind surprise. No pairings.

COMPLETE. A war wages on a broken planet, and Kairi is sent to pick up the pieces. — Zuko/Kairi.